id:A027232 - OEIS Search Results

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a(n) = Sum{T(n,k)*T(n,k+1), 0<=k<=n-1, T given by A026758.

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1, 4, 19, 72, 355, 1347, 6843, 26077, 135752, 519336, 2760110, 10591394, 57299551, 220393887, 1210772453, 4665698732, 25974365600, 100243916036, 564517479641 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A129019 A027208 A085348 this_sequence A110688 A009450 A096978` `Adjacent sequences: A027229 A027230 A027231 this_sequence A027233 A027234 A027235`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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